Hydraulic plants for surfacing ores

Claim 1

IN APPARATUS FOR HYDRAULICALLY CONVEYING MINERAL MATERIAL AND HAVING A CONVEYING PIPE THROUGH WHICH A MIXTURE OF SUCH MATERIAL AND WATER IS CONVEYED, AND MEANS FOR INTRODUCING A SUPPLY OF THE MINERAL MATERIAL INTO SAID PIPE, INCLUDING A CONTAINER FOR THE MATERIAL HAVING AT ITS UPPER END AN ENTRY OPENING THROUGH WHICH THE MATERIAL IS LOADED INTO SAID CONTAINER AND HAVING AT ITS LOWER END A DISCHARGE PORT THROUGH WHICH THE MATERIAL IS ADVANCED TO SAID CONVEYING PIPE, THE COMBINATION OF A HYDRAULIC JACK ENCASED IN SAID CONTAINER, MEANS FOR SUPPORTING SAID JACK IN DEPENDING RELATION ABOVE SAID DISCHARGE PORT INCLUDING INTERNAL BRACKETY MEANS SECURED TO SAID CONTAINER AND A UNIVERSAL JOINT CONNECTING THE UPPER END OF SAID JACK TO SAID BRACKET MEANS SO AS TO ENABLE SAID JACK TO MOVE IN ALL DIRECTIONS WITH RELATION DOWNWARDLY BRACKET MEANS, A VALVE CONTROL ROD EXTENDING DOWNWARDLY FROM SAID JACK TOWARD SAID DISCHARGE PORT, AND A VALVE MOUNTED ON THE LOWER END OF SAID CONTROL ROD AND CARRIED BY SAID JACK FOR CONTROLLING THE PASSAGE OF MATERIAL THROUGH SAID DISCHARGE PORT AND MOVABLE DOWNWARDLY AWAY FROM SAID CONTAINER IN ITS OPENING MOVEMENTS, SAID MOVABLE JACK ENABLING SAID VALVE TO CORRECTLY CENTER ON SAID DISCHARGE PORT IN SAID VALVE''S UPWARD CLOSING MOVEMENTS, AND THE UPPER PORTION OF SAID VALVE BEING CONFIGURED TO COOPERATE WITH SAID DISCHARGE PART TO EFFECT THE CENTERING OF SAID VALVE IN ITS CLOSING MOVEMENTS.